mirror of https://github.com/GNOME/gimp.git
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/* LIBGIMP - The GIMP Library
|
|
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
|
|
*
|
|
* gimpmatrix.h
|
|
* Copyright (C) 1998 Jay Cox <jaycox@earthlink.net>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __GIMP_MATRIX_H__
|
|
#define __GIMP_MATRIX_H__
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* For information look into the C source or the html documentation */
|
|
|
|
|
|
void gimp_matrix3_transform_point (GimpMatrix3 matrix,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble *newx,
|
|
gdouble *newy);
|
|
void gimp_matrix3_mult (GimpMatrix3 matrix1,
|
|
GimpMatrix3 matrix2);
|
|
void gimp_matrix3_identity (GimpMatrix3 matrix);
|
|
void gimp_matrix3_translate (GimpMatrix3 matrix,
|
|
gdouble x,
|
|
gdouble y);
|
|
void gimp_matrix3_scale (GimpMatrix3 matrix,
|
|
gdouble x,
|
|
gdouble y);
|
|
void gimp_matrix3_rotate (GimpMatrix3 matrix,
|
|
gdouble theta);
|
|
void gimp_matrix3_xshear (GimpMatrix3 matrix,
|
|
gdouble amount);
|
|
void gimp_matrix3_yshear (GimpMatrix3 matrix,
|
|
gdouble amount);
|
|
gdouble gimp_matrix3_determinant (GimpMatrix3 matrix);
|
|
void gimp_matrix3_invert (GimpMatrix3 matrix,
|
|
GimpMatrix3 matrix_inv);
|
|
void gimp_matrix3_duplicate (GimpMatrix3 src,
|
|
GimpMatrix3 target);
|
|
|
|
gboolean gimp_matrix3_is_diagonal (GimpMatrix3 matrix);
|
|
gboolean gimp_matrix3_is_identity (GimpMatrix3 matrix);
|
|
gboolean gimp_matrix3_is_simple (GimpMatrix3 matrix);
|
|
|
|
|
|
void gimp_matrix4_to_deg (GimpMatrix4 matrix,
|
|
gdouble *a,
|
|
gdouble *b,
|
|
gdouble *c);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GIMP_MATRIX_H__ */
|